Finding the Fourth Proportional to 1,286,396.62, 1,775,336.36 and 713,621.32
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Solution
The fourth proportional to 1,286,396.62, 1,775,336.36 and 713,621.32 is: 984,857.90
Step by Step Solution
- Step 1: Write the proportion equation
1,286,396.62 : 1,775,336.36 = 713,621.32 : x - Step 2: Convert to fraction form
1,286,396.62/1,775,336.36 = 713,621.32/x - Step 3: Cross multiply
1,286,396.62x = 1,775,336.36 × 713,621.32 - Step 4: Simplify right side
1,286,396.62x = 1,266,917,864,222.41 - Step 5: Solve for x
x = 1,266,917,864,222.41/1,286,396.62 - Step 6: Final answer
x = 984,857.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.